LSS: Loud Popping

[Brett Nachman]

So, I have a Lone Star Special 1x12 which I love, but there is one thing that is going on, and I can't figure out the reason.

Basically, whenever I switch into or out of 5w mode, there is a loud pop. This happens whether it is in the same channel (i.e., I flick the switch on the front of the amp) or from one channel to the other (e.g., using the footswitch to switch from 5W channel 2 to 30W channel 1).

When I switch from 15 to 30 or vice versa---in any combination---no pop at all.

Mesa suggested it might be a power tube problem, but switching ot the tubes had no effect. Any ideas.

Thanks,
Brett

 

[Kyle]

What is gain and master volume set at when you're switching? Try setting all controls to 7:00 then switching. Then gradualy bring your volumes up and see what happens. Another possiblity is to switch your power tubes in their sockets: example: take two each and switch them with each other. If it's a tube you'll find out. 5 watt mode only runs on one El84 (which one I don't know) but switching them will isolate it. Hope this helps.

 

[Brett Nachman]

Thanks Kyle. This happens at any volume and any gain level---even with the volume totally off.

The tube position swap was the first thing I tried---made no difference.

If I can't figure this out soon, I might have to drive this thing up to the Mesa factory and have them look at it.

Brett

 

[musicbox]

I finally got to the bottom of a popping issue in my mesa. Shitty saudering on mesa's party. Couple of capicitors were almost loose...Take it to a qualified tech and have him look it over.

 

[marlon]

...hey I notice my LSS does the the same thing, but it's not a big deal to me.

 

[Brett Nachman]

Thanks for the replies. I am just going to take the amp to Mesa next week. I called them today and they said this shouldn't be happening. Easy hour drive for me, so I'll see what happens. reat customer service from them, as always.

Brett